One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,4,6)(9,10)(11,13)(12,14)(15,16)(17,18,22,25)(19,27,24,20)(21,30,28,26)(23,31,32,29)(9,10)(11,15)(12,14)(13,16)(17,19,28,31,22,24,21,29)(18,23,30,20,25,32,26,27)(1,3,5,4)(2,6,7,8)(9,11,12,16)(10,13,14,15)(17,20,22,27)(18,24,25,19)(21,23,28,32)(26,31,30,29)(11,16)(13,15)(17,18,22,25)(19,27,24,20)(21,30,28,26)(23,31,32,29)(1,4,5,3)(2,6,7,8)(10,14)(13,15)(18,25)(20,27)(23,32)(26,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.